AKUNA CAPITAL Software Developer - Internship interview questions

There were 3 coding questions and have to solve using only C++ programming language. The cooling round was on the Hackereath platform and the time limit was of 2 hours. I was able to solve all three questions but haven't cleared for second round

OA, Technical Interview, then Technical + System Design Interview. Both tech interviews in the traditional DSA code along style. Interviewers were friendly and open to give tips and gave the opportunity to demonstrate your knowledge by asking questions (e.g. How is a heap implemented)